It is not as smooth to play as it was in mp3, but better since the last update. The current version is a compromise between smooth aim on powerpaths and the magnetic behaviar which is needed for gravity changers. You can get used to the new aim feeling after a few minutes of playing imo.

I still get a headache when playing on horizontal type blue sprint blocks. When running straight it's ok, sometimes bumpy, but then If I move my aim on a slope block I lose myself in the 3 dimensions and I find myself lying on the ground next to a bucket to puke in. It's just doesnt feel natural. I think there should be a variation of sprint paths that don't behave as magnetic blocks. Blue paths, just sprint, like MP3. Red paths, magnetic feel. Or with skinning tool, be capable of changing behaviour.

As it stands there is no option for the blue paths to work the way they used to. It kinda ruins maps made before the change that was made to fit the old style. Two variations of the same block would be nice where one of them has the old camera.

Personally, having only 1 option is much better. for example if you play on a map with these blue paths, you will never know if it is Version 1 or Version 2. You will have to try first. And that might be a bit annoying, especially in important fighting situations.